EP0137322B1 - Vase d'expansion - Google Patents

Vase d'expansion Download PDF

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Publication number
EP0137322B1
EP0137322B1 EP84110740A EP84110740A EP0137322B1 EP 0137322 B1 EP0137322 B1 EP 0137322B1 EP 84110740 A EP84110740 A EP 84110740A EP 84110740 A EP84110740 A EP 84110740A EP 0137322 B1 EP0137322 B1 EP 0137322B1
Authority
EP
European Patent Office
Prior art keywords
fluid
extensible member
rubber cylinder
housing
storage capacity
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP84110740A
Other languages
German (de)
English (en)
Other versions
EP0137322A3 (en
EP0137322A2 (fr
Inventor
Heinrich Winkelmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Winkelmann and Pannhoff GmbH
Original Assignee
Winkelmann and Pannhoff GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Winkelmann and Pannhoff GmbH filed Critical Winkelmann and Pannhoff GmbH
Priority to AT84110740T priority Critical patent/ATE36597T1/de
Publication of EP0137322A2 publication Critical patent/EP0137322A2/fr
Publication of EP0137322A3 publication Critical patent/EP0137322A3/de
Application granted granted Critical
Publication of EP0137322B1 publication Critical patent/EP0137322B1/fr
Expired legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D3/00—Hot-water central heating systems
    • F24D3/10—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system
    • F24D3/1008—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system expansion tanks
    • F24D3/1016—Tanks having a bladder
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D3/00—Hot-water central heating systems
    • F24D3/10—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system
    • F24D3/1008—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system expansion tanks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D3/00—Hot-water central heating systems
    • F24D3/10—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system
    • F24D3/1008—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system expansion tanks
    • F24D3/1041—Flow-through

Definitions

  • the invention relates to an expansion vessel for accommodating a storage volume in pump-operated fresh water systems or for accommodating temperature-related volume changes in a closed liquid system, with a fixed housing and with a liquid-filled member connected to two separate liquid connections of the housing and expandable outwards when the storage volume is accommodated, whereby the interior between the fixed housing and the expandable member is constantly connected to the atmosphere.
  • the stretchable member In a known expansion vessel of this type (DE-U-7517825), the stretchable member consists of a tubular membrane, within which a pipe section serving as a supply line and provided with openings is arranged, an outlet also being provided at one end of the tubular membrane. Because of this design, a certain through-flow of the vessel always takes place during the inflow and tapping of a quantity of liquid, which counteracts undesirable bacterial formation, particularly in fresh water supply systems.
  • a further expansion vessel is also known (DE-U-74 17 124), in which the liquid-filled, stretchable member designed as a tubular hollow body is free of inner support elements and can withstand stresses at maximum operating condition by expansion in the direction of the inner wall of the container through a tubular hollow body perforated support tube surrounding the outside is secured.
  • the container interior surrounding the tubular hollow body and the perforated support tube is filled with a compressed gas, for. B. nitrogen, filled with a pressure adapted to the respective purpose. Now takes in this vessel the liquid pressure within the tubular hollow body, for. B.
  • the compressed gas in the surrounding container space can compress the tubular hollow body so far that contact zones of the inner surfaces of the tubular hollow body form with stagnant water areas therebetween, so that it also leads to undesirable bacteria formation in this vessel the aforementioned contact zones can come.
  • the object of the invention is to provide a solution which completely excludes the formation of bacteria due to the contact of partial areas of the stretchable member with one another or with internal internals.
  • the stretchable member is designed as a rubber cylinder which is free of internal support elements and is dimensionally stable in its unloaded initial form, the ends of which are each assigned a liquid connection.
  • the fixed outer housing takes over the function of the inner plastic tube provided in the known construction for the axial determination of the connections on both sides and also serves to provide a sufficiently secure shielding in accordance with the legal provisions for pressure vessels.
  • the fixed housing is formed from a plurality of sheet metal parts which are connected to one another by means of spot welding such that the locations of the weld seams remaining between the spot welds form the connection between the interior and the atmosphere.
  • the expansion tank shown in the drawing has a fixed housing 1, which is composed of two end sheet metal half-shells 2 and a cylindrical sheet metal section 3 arranged between them, the individual parts being connected to one another by welding.
  • connection flanges 4 are welded, in which a strong rubber cylinder 5 is fastened by means of fastening connection flanges 6, which are provided with connection nipples 7 for liquid supply and discharge lines, not shown.
  • a ventilation opening 8 is formed such that the interior 9 between the fixed housing 1 and the rubber cylinder 5 is depressurized or connected to the atmosphere.
  • connections shown in the drawing as continuous weld seams 10 between the half-shell-shaped sheet metal parts 2 and the cylindrical middle part 3 can also be designed as spot weld seams, such that the points of the weld seams remaining between the spot welds connect the interior 9 with the atmosphere cause.
  • the described expansion vessel works as follows:
  • the rubber cylinder 5 is already filled with liquid in a fresh water supply system before the pump is actuated and in a heating system with a hot water supply before heating.
  • the increase in pressure that occurs in both cases causes the rubber cylinder 5 to expand, thereby creating an additional volume in the latter.
  • the rubber cylinder contracts again until the original shape shown in the drawing has regressed. This unloaded initial shape of the rubber cylinder is dimensionally stable, so that there is no danger that parts of the inner surface of the rubber cylinder can come into contact with one another.
  • any formation of closed partial volumes inside the rubber cylinder due to contact of partial regions of the wall of the rubber cylinder is therefore not an option can come because there is no pre-pressure in the interior 9 of the vessel, which could cause corresponding squeezing of partial areas of the rubber cylinder. Rather, this retracts uniformly solely from the maximally expanded position into the dimensionally stable starting position according to the drawing, solely due to the elasticity of the restoring forces, these elastic restoring forces causing the relevant multi-volume to be removed from the interior of the rubber cylinder 5.
  • the rubber cylinder can also be made of other rubber-like materials, i.e. H. Made of spring-free deformable materials, which include all elastomers.
  • the dimensioning is basically carried out according to the occurring liquid pressures. At higher pressures, the rubber cylinder could also be equipped with spring-elastic reinforcements, e.g. B. spiral springs, metallic bellows or the like. It is essential to dimension and design such that the cylinder shape is reset and maintained in the unpressurized initial state in any case, so that contact with inner surface areas is excluded with certainty.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Jet Pumps And Other Pumps (AREA)
  • Reciprocating Pumps (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Claims (2)

1. Vase d'expansion destiné à recevoir un volume accumulé dans des installations d'eau fraîche actionnées par des pompes, ou à compenser des variations de volume dues à la température dans un circuit fermé de liquide, comprenant un boîtier fixe (1) et un organe qui est rempli de liquide, est relié à deux raccords (7) à liquide distincts du boîtier (1) et est expansible vers l'extérieur lors de la réception du volume accumulé, l'espace interne situé entre le boîtier fixe (1) et l'organe expansible étant en communication permanente avec l'atmosphère, caractérisé par le fait que l'organe expansible est réalisé sous la forme d'un cylindre (5) en caoutchouc qui est dépourvu d'éléments intérieurs de soutien, possède une forme stable en condition initiale non chargée et aux extrémités duquel un raccord respectif (7) à liquide est associé.
2. Vase d'expansion selon la revendication 1, caractérisé par le fait que le boîtier fixe (1) se compose de plusieurs parties (2, 3) en tôle qui sont mutuellement solidarisées, par soudage par points, de telle sorte que les zones des cordons de soudure, demeurant ouvertes entre les soudures ponctuelles, établissent la liaison entre l'espace interne (9) et l'atmosphère.
EP84110740A 1983-10-07 1984-09-08 Vase d'expansion Expired EP0137322B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84110740T ATE36597T1 (de) 1983-10-07 1984-09-08 Ausdehnungsgefaess.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3336512A DE3336512C2 (de) 1983-10-07 1983-10-07 Ausdehnungsgefäß
DE3336512 1983-10-07

Publications (3)

Publication Number Publication Date
EP0137322A2 EP0137322A2 (fr) 1985-04-17
EP0137322A3 EP0137322A3 (en) 1987-03-18
EP0137322B1 true EP0137322B1 (fr) 1988-08-17

Family

ID=6211243

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84110740A Expired EP0137322B1 (fr) 1983-10-07 1984-09-08 Vase d'expansion

Country Status (3)

Country Link
EP (1) EP0137322B1 (fr)
AT (1) ATE36597T1 (fr)
DE (2) DE3336512C2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4302356A1 (de) * 1993-01-28 1994-08-04 Honeywell Ag Membranausdehnungsgefäß
DE19735996C1 (de) * 1997-08-19 1998-09-24 Winkelmann & Pannhoff Gmbh & C Ausdehnungsgefäß

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19504750A1 (de) * 1995-02-14 1996-08-22 Norbert Scherer Druckausgleichsgefäß
DE19510360C2 (de) * 1995-03-22 1999-09-02 Kaldewei Franz Gmbh & Co Druckausgleichsgefäß
NL1002144C2 (nl) * 1996-01-22 1997-07-25 Flamco Bv Doorstroomexpansievat.
DE29902645U1 (de) 1999-02-15 1999-04-29 Kermi Gmbh, 94447 Plattling Heizkörper mit Ausgleichsgefäß
DE102011053053B4 (de) * 2011-08-26 2023-06-15 Cummins Ltd. Fluidleitung

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7417124U (de) * 1974-09-19 Gebr Otto Kg Druckausdehnungsgefäß für Warmwasserheizungen
DE1600573B2 (de) * 1966-02-03 1971-05-27 Sugimura, Kazuo, Sugimura, Nobuyuki, Shimizu, Shizuoka (Japan) Fluessigkeitsdruckspeicher
DE7243478U (de) * 1972-11-27 1973-05-30 Gebr Otto Kg Zweikammeriger druckbehaelter insbesondere fuer trinkwasseranlagen
NL7306849A (fr) * 1973-05-16 1974-11-19
DE7517825U (de) * 1975-06-04 1975-12-18 Gebr Otto Kg Warmwasserspeicherheizvorrichtung mit einem druckbehaelter und einem druckausdehnungsgefaess
NL184539C (nl) * 1981-02-13 1989-08-16 Flamco Bv Expansievat.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4302356A1 (de) * 1993-01-28 1994-08-04 Honeywell Ag Membranausdehnungsgefäß
DE19735996C1 (de) * 1997-08-19 1998-09-24 Winkelmann & Pannhoff Gmbh & C Ausdehnungsgefäß

Also Published As

Publication number Publication date
ATE36597T1 (de) 1988-09-15
EP0137322A3 (en) 1987-03-18
EP0137322A2 (fr) 1985-04-17
DE3473503D1 (en) 1988-09-22
DE3336512A1 (de) 1985-04-25
DE3336512C2 (de) 1986-03-27

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